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Decimalization, Ipo Aftermath, And Liquidity, Charlie Charoenwong, David K. Ding, Tiong Yang Thong

Research Collection Lee Kong Chian School Of Business

We investigate the effect of decimalization on the aftermarket trading of NYSE-listed IPOs. We find that the relation between bid–ask spread and underpricing becomes negative post-decimalization, suggesting that benefits from the increased price competition accrue more to hot IPOs. The quoted depth is generally smaller post-decimalization due to a higher probability of front running, which aggravates the cost of adverse selection and limit order submission. We show that underwriters continue to provide price support but are only willing to cover the initial short position, if profitable to do so. Decimal pricing does not affect the flipping strategy of institutions for …